Journal
ADVANCED MATERIALS TECHNOLOGIES
Volume 8, Issue 3, Pages -Publisher
WILEY
DOI: 10.1002/admt.202201496
Keywords
3D printing; dielectrics; graded index; nanocomposites
Categories
Ask authors/readers for more resources
In this study, low-loss graded dielectric materials were successfully designed and printed using active mixing of nanocomposite inks. This method enables the rapid fabrication of high-performance RF devices with locally tunable dielectric properties.
Additive manufacturing has emerged as a promising approach for fabricating graded refractive index structures that control the electromagnetic response of radio frequency (RF) devices. However, current 3D printing methods cannot produce continuous gradients from multiple materials. Here, low-loss graded dielectrics via active mixing of nanocomposite inks composed of block copolymers and oxide nanoparticles are designed and printed. By simultaneously tailoring their rheological, printing, and their local filler particle-to-polymer ratio using an active mixing printhead, a conductive microstrip-graded substrate matching network with a gradually changing dielectric response, is created. In these printed devices, the impedance of the RF signal is controlled by the graded substrate rather than by varying the conductive microstrip geometry, enabling the fabrication of smaller RF devices. This approach enables the rapid design and fabrication of high-performance RF devices with locally tunable dielectric properties.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available